<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<style>
	#div1{
		width: 200px;
		height: 200px;
		background:#0f0;
		float: right;
	}
	#div2{
		width: 200px;
		height: 200px;
		background:#f00;
	}
</style>
<body>
	<div id="div1"></div>
	<div id="div2"></div>
</body>
<html>